I am installing my battery cutoff on the rear bulkhead with the terminals protruding into the trunk. My B&B has a "shelf" where the terminals stick into. Having a 2 guage, unfused terminal back there open to the world kind of bothered me. When ordering my weatherpak connectors, I saw Waytek part number 23507. It is a rubber boot that goes on the end of the cable and fits nicely over the terminal. I have not done the final install, but a rough test indicates that it will fit snugly over the nuts on the terminal and be held in place by the cable.
Tom
Tom